Jiafu Zhang

Inventor

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Work History

Patent OwnerApplications FiledYear
Tong Oil Tools Co., Ltd.
2
2010

Inventor Addresses

AddressDuration
Shaanxi, CNDec 29, 11 - Dec 17, 13

Technology Profile

Technology Matters
E21B: EARTH OR ROCK DRILLING 1
F16P: SAFETY DEVICES IN GENERAL 1

Patents / Publication

Patents / Publication #Year of Publication / IssuedTitleCitations
86078562013Cable head for petroleum logging0
2011/0318,0882011CABLE HEAD FOR PETROLEUM LOGGING0

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